v3.26.1
Long-Term Debt (Details)
$ in Thousands, € in Billions
6 Months Ended
Jun. 30, 2025
USD ($)
Jun. 30, 2026
Mar. 31, 2026
EUR (€)
Debt Instrument [Line Items]      
Loss on extinguishment of debt | $ $ (117,938)    
Norwegian Aqua Term Loan      
Debt Instrument [Line Items]      
Principal amount | €     € 1.0
Fixed interest percentage rate     1.91%
Norwegian Luna Term Loan      
Debt Instrument [Line Items]      
Export credit facility financing as percentage of contract price     80.00%
0.875% Exchangeable Senior Notes Due 2030      
Debt Instrument [Line Items]      
Effective interest rate   1.07%  
0.750% Exchangeable Senior Notes Due 2030      
Debt Instrument [Line Items]      
Effective interest rate   1.14%  
1.125% Exchangeable Senior Notes Due 2027      
Debt Instrument [Line Items]      
Effective interest rate   1.64%  
2.5% Exchangeable Senior Notes Due 2027      
Debt Instrument [Line Items]      
Effective interest rate   3.06%